Power actuated dipper



Feb. 7, 1933. 1 p MURTAUGH I 1,896,414

POWER AGTUATED DIPPER Filed Aug. 26. 1951 i@ @f 'Lu- 5 Patented Feb. 7,1933.y

UNITED STATE s PATaNToFI-*ICE `IoSEPH P. MURTAUGH, yor CHICAGO HEIGHTS,ILLINOIS, ASSIGNQETC .IIIIIERIC'AN` MANGANESE STEEL COMPANY, or CHICAGOHEIGHTS, ILLINOIS, A- CORPORATION E POWER ACTUATED DIFFER Applicationled August 26, 1931. Serial No. 559,433. g

This invention relates tofpowery actuated dippers, buckets and the likeexcavating irnplements and has among its important objects to provide animproved body assembly including an interchangeable lip member andrenewable tooth structure.

The interchangeable lip assembly of the present case is allied inprinciple to the disclosure in application Serial No, 583,317 tiledDecember 26, 1931, in both cases the purpose j being to'supply the userwith a dipper body and a plurality of lip members so that the user maychange the clipper body over, by interchange of lips, to meet differentexcavating requirements. l

While the foregoing statement is indicative in a general wayfof thenature of the inven-` tion, other objects and advantages will beapparent upon a full understanding of the construction and cooperativerelationship of the severalparts of the. implement. j

One type of construction for reducing the invention to practice ispresented herein by Way ot' exemplification but it is to be understoodthat the invention is susceptible of embodment in still otherstructurally modiiied for-ms without departing from'the spirit of theinvention, as defined by the subjoined Inltheaccoinpanying one sheet ofdraw- Figurev- 1is a viewin side elevation of a dipperl constructed inaccordancewith the present invention;

'Figure 2 isa view ini-ront elevation of a portion of thedipper;

Figure-3 is aview similar to Figure 1 but showing the lip and toothassembly in secl/ tion; i j j Figure 4 is a detail view in sid-eelevation of the front portion of one of the side walls showing one formot anchoring means for an interchangeable lip member;

Figure 5 is adetail view in side elevation of a lip member; f

Figure 6 isa similar view of a tooth. and

Figure 7 is a view in side elevation of a modified form of lip and toothassembly. f

Referring now to thedrawing 'in detail, 5 represents the dipp'er bodycomprising a one Piece Casting having integral front,`side and backwalls 6, 7 and 8 respectively.

The back Wall 8 carries the usual lifting ear 9, the hinge bearings-10and the stick bearings 11.

and comprises a cutting edge 13 made to acvand 6) which are adapted toStraddle the cutting edge withl a close clamping it. The jaw 16 of eachtooth is made with a Continuation4 17'which is passedthroughopenings 18made to receive them in the meeting flanges 19 and 20 on the lip andfront wall respectively. After extending through these openings, rivetsor some other double ended pin devices 21 suitable for the purpose aresecured in the registering openings 22 and 23 to lock the jaws in placeand at the same time mount the lip on the front wall of the body. Theconnection thus serves the dual purpose of locking the teeth to the lipand locking the lip' with. the teeth thereon to the front wall of thebody. The flange 20 on the front wall is cast with pairs of reinforcingwebs 24 which are The `lip member 12 is separately formed Y commodateseparately formed interlocking teeth 14. The teeth for this purpose aremade spaced to lit the width of the continuations of the jaws 16 (seeFig. 2). This aids in holding the jaws in parallel alignment and addsrigidity to the structure.

yThe integral side members 25 of the lip .are supported upon the edge ofthe side walls of the body and may be joined doubleended pins or thelike 26.

Referring to Figure T, itwill be seen that the teeth and lip may beeither cast as an integral assembly or else separately formed andthereto by welded together. ll'hen this is resorted to the llange 19 onthe lip need not be used; otherwise the assembly is effected as in thefirst y form.

l claim:

1. A power actuated dipper comprising a body, a lip, teeth for said lipand means for anchoring the teeth to both the lip and body, i i

comprising integral jaws for the teeth adapted to straddle the lip, anintegral extension for one jaw of each tooth having an opening adjacentthe end 1hereof,,projectingiiauges on the body and lip havingregistering openings through which said integral extensions on the jawsproject, and pin devices on the body seated in the openings in theextensions of the jaws.

2. A lip and tooth assembly for power actuated dippers, comprising incombination, a cutting edge on the lip, teeth having jaws straddlingsaid cutting edge, a flange on the lip having a series of spacedopenings therein and means on one jaw of each tooth projecting throughsaid openings and providing means for securing the lip and tooth assemblto the body of the dipper of the class descri ed.

3. A lip and tooth assembly for power actuated dippers, comprising incombination, a

' cutting edge on the lip, teeth having jaws straddling said cuttingedge a flange on the lip having a series of spaced openings there- `inand means on one' jaw of each tooth projecting through said openings andproviding means for joining the teeth to the li 4. A power actuateddipper emb ying in its construction a body providing front and sidewalls, a flange formed on the upper edge of the front wall havingopenings therein, reinforcing ribs on the front wall merging with saidflange, a separately formed lip for said body, a ange on said lipadapted to bear against the flange on the front wall of the body andhaving openings therein adapted to register with openings in said firstnamed flange, teeth for said lip having jaws adapted to straddle thelip, an extension on one jaw of each tooth adapted to project throughthe registering openings in said flanges and seat between thereinforcing ribs on the front wall of the body. Y

5. A power actuated dipper comprisinva a bod a lip, teeth for said lipand means or anc oring the teeth to both the lip and body, comprisingintegral jaws for the teeth adapted to straddle the lip, an integralextension for one jaw of each tooth, projecting flanges on the body andlip havlng registering op-enings through which said integral extensionson said jaws project, and means for securing said extensions to saidbody.

6. A power actuated dipper embodying in its construction a bodyproviding front and side walls, a flange formed on the upper edge of thefront wall having openings therein, reinforcing ribs on the front wallmerging with said -flange, a lip for lsaid body formed separatelytherefrom, teeth for said lip having jaws adapted to straddle the lip,an extension on one jaw of each tooth adaptedto project through one ofsaid openings in said flange and seat between two of the reinforcingribs on the front wall of the body.

7. A power actuated dipper embodying in its construction a bodyproviding front and side walls, a flange formed on the upper edge of thefront wall having openings therein, re-

wall, a digging lip mem r adapted for detachable securement to saidfront wall, said lip including a plurality of integral tonguelikeextensions rearwardly extending therefrom, said front wall including aflanged forward edge provided with a plurality of openings adapted toreceive said extensions of said lip and means for fastening saidextensions to said front wall rearwardly of said fianged edge.

Signed at Chicago, Illinois, this 18th day of August, 1931.

JOSEPH P. MURTAUGH.

